Drawer mechanism for cash registers



Feb. 6, 1940. A. c. KIRSHNER DRAWER MECHANISM FOR CASH REGISTERS Filed May 20, 1957 C. Kirshner 26 BY aux/W Hi (Ittomeg Patented Feb. 6, 1940 v 2.189.177, s i DRAWER MECHANISM FOR CASH .REGISTERS Arthur C. Kirshner, Dayton, Ohio, assignor National Cash Register Company, Dayton, Ohio,"

i a corporation-of Maryland fA lication May. 20, 1937, Serial No. 143.635 s ,9 Claims. (o1.*,45- -7.) This invention pertains to a drawer mecha- Fig. 6 is a view ofthe space between the right I nism for cash regi-sters'and other drawerequipped devices. '1 2 p I i Thegeneral object of theinvention is to pro- 5 vide means for arresting the drawer action at a predetermined point between the .closed and fullyopened positions with further means for ienabling the operator to jthereait'er release the arresting mechanism, if desired, and open the a drawer to its full extent. 1 7

The particular embodiment here set forth" :shows the invention applied to a cash register .drawer. The usefulness of the invention for this purpose is in arresting the expelled cash" register 15 drawer at a point where the'front part of the 3 till will 'heLexposed while the rear'part remains.

in the drawerirame. In ordinary retail trade many transactions need only fractional currency by such arrested opening of the drawer while the larger denominations of currency remain protected against ipilfering If the operator wishesmto "get into the rear of thedrawer, the Q25 arresting mechanism may be released by a slight inward motion of the drawer and then the drawt-er can be completely extended. A further ad- .vantage of the invention as applied to cash regiis'ters is its "use instores having narrow aisles n behind the counters, where often a fullv loaded and extended drawer would block the movements of or strike clerksother than the operator.

With these and incidental objects in-VieWJthe,

invention i-ncludes certain novel features of con- 35 'structionand combinations of parts, the. essen-[ :tial elements of which are set forthin appended ;claims and a preferred form or embodiment of which is hereinafter described with reference to the drawing which accompaniesaand gforms a 40 part of this-sp'ecification. 1 r

- In the drawing: i l i I Fig. l is atop view of the right side of a' cash register drawer and adjacent frame, both partly broken awayto show the mountingof the parts.

55 Figfz't-isi-asideelevation of the drawer inits iclosedposition with the side of the Jf rame re moved, iwith the drawer release mechanism shown- Fig. 3 is, an 'enlargedview of the bracket 16 and roller "I -l :as shown .in Fig. 2.

or frame removed. i Fig. 5 is a side elevation of the drawer in (the .f-ully extended position with the side of'the-drawer 55 frame removed. is;

,for change making, which, ,being ordinarily in the irontlpart of the drawer, isalways exposed Fig. 4 -is -.a,,iside elevation-of the:drawer in arrested openvposition with the side of the-draw- "side of the'drawer and the frame looking from front to rear, -at, line 6-6 in Fig. 4,showing the .alinement of the parts. i v

Thedrawer l0 (Fi'g.1-) has, fastened toeitherjzi side and running its full depth, angle bars, the, (right oneof whichis'shown at H (Figs. 1, '2, 4 5), which ast as bearing surfacesior the forward and backward movement of thedrawer on flanged rollers l2 (Figs; 1-, 2, 4:and.5) Roll.- 10

ers I3 (Figs. 1, 2, 51 and 5) resting onthe upper side ofithe bearing surfaceof the anglebars H .oppose any verticalplay of the drawer by confiningithe movementof said angle bars. Rollers it also serve to .keep thebackend of' the drawer from rising against the top of the frame (due to-the tendency ofthe frontfiof the open drawer to drop after the :angle bars have moved fiorward with the drawer and the majorpart of it he we'ight of the drawer 'has passed forward of 20 ithe front rollers l'2 suifieientlyto leave the rear i -":rollersl'2 (Fig.5), LRo'lle'rs l2 and l3 fareattached by studs 14 (Fig. 2) to the sides "of the drawer'framedi (Fig. 1). The periphery of the :ro'llers {l2 'extendingpeyondthe flanges serve to steadythe drawer against lateral movement; This results in a free moving drawer witha minimum (of vertical .or lateral play. i i I Thekdrawer AH) hasiastened on its right side near the rear endan inverted U-shapedibracket r l 6j'(a1l.jfig*ures-) ;whose purpose is to support a wroller tappet l1 (all-figures) whose axisflis perpendicular to-the side of thedrawer. The axis 0f the roller tappet is carried at either-end in vertical slots fl8 (Fig.3) in the bracketilfiin such a manner that the roller tappetis free to move u and down and rotate at the same time. The -roller tappet l'1{is*-normally resting at the" bot tom of the slots -8 and is-yieldingly retained there under-the influence or springs 19 (Figs. 3 and 6) fastened between each end "of the axis of the roller and the bottom of bracket 16. The springs 19 are looped at their upper ends to. fit circum- -ferential grooves out into the endsuof the axis of I tithe .roller. -Tl1e rotationof *the roller tappet it! :is for 'anti frictional purposes.

The I vertical :movement of the srollerttappet serves, in conjunctionrwith aaslide or idetent .25 .(Figs. .1 and 2) and a by-pass ibell crank pawl .21. .(Figs. -'l,;2, and ti), to arrest. the drawer, as it opens, at-a' point short f the maximum extension of the drawer land upon further manipulation to release -t-he :drawer from the arresting mechanism. This operation will now be-described.

- l-'he detent (-2 6 is mounted on two studs-.28 pro- $5 gives sufficiently to allowthe roller tappet H to truding on the inside of the drawer frame in such a manner that it may be moved forward or backward a short distance. The forward end of the detent has a nose 30 (Fig. 2), the purpose of which will be later explained. The upper edge of the detent has a hump 29 so positioned that when the drawer starts forwardthe roller tappet ll "will strike it on the "rear slope, knocking it forwardon its studs from'theposition shown in Fig. 2 to that shown in Fig. 4'.

is thrust upward in slots l8, and,-the drawei cone tinuing its forward motion, the .roller tappet is carried over the hump.

the right side of the drawer frame. This stud acts as an axis of rotation for the pawl -in 'a' plane coincidingwith the plane of movement of the ydetent 26 and the forward moving roller tappet l]. The normal position of the bell crank pawl 21 is shown in Fig; 2;,as it is: retained inthat position by a spring 3! (Fig-6) which pass forward'as shown. in Fig, 5, when the slide is in therearward positionshown in Fig. 2. Continuingthe progress of the, opening drawer which is forcibly'expelled.from; the closed, position by springs? (Figs. .2 and 3,), and which has been followed;until the roller tappet H has jumped the hump 29 (Fig. 2), thedownward pull .of,

springs 19 en the roll,er ,l'i is not sufiicient to holdit to the forward slope of hump 29, as the forward movement of the;draw er is fast enough to preventthat, from happening. Consequently, jumping from the crest of the hump, the roller. tappet ll; contacts thelupper arm of; the pawl 2T asshownin -Figs.,4 and 6. The pawl,being unable, to turn counter-clockwise, due to the .nose 3i] of slide 26 blocking the movementstops the roller tappetand'therefore the drawer (Fig.

The point atwhich the drawer is arrested 4). is determined'by the placing of the slide 25 and the pawl '21-, therefore the drawer may be built with any interior arrangement and the arresting mechanism positioned accordin ly-: I If, after havingv opened to the arrested position, it is desired to have.the.drawer extended to its full length, the drawer is manually pushed inwardly, gently, a short; distance so that ithe roller tappet ,l'l,;now,resting on the nose of the slide due to the action of "springs 19, strikes the forward slope of the hump 29 and pushes the slide, to its rearward position. This with-draws the nose'3il from the pawl 21, leaving it;free to .rotate'on its axis under, control of its spring. Now the drawer can be pulled forward, asthe roller, striking the upwardly extending .arm of the pawhrotatesthe pawl in a counter-clock; :wise direction; thereby permitting the roller tappet to pass-by and the drawer. to open to its full extent. The pawl returns to its normal positionbefore: mentioned by the action ofv its spring 31. I

The operation of closing the drawer results in the roller tappet ll striking the front side of the upwardly extending pawl arm and rotating the pawl in' a clockwise" direction until the roller tappetl'l can pass, as shown in-Fig. 5,. whereupon the pawl returns to normal. The continued rearward movement of the drawer causes the roller to strike and rise over the hump 29. The operator normally clos'es-theldrawer with The roller tappet H, by meeting the slope of the hump,

The forward motion of the detent 26 carries the previously mentioned nose 3% over the rearwardly'extend'ing armjofg the bell crank by-pass pawl 27 (Figs. 4), which is mounted on a stud projectinginwardly from 1 sufficient force to carry'the roller over the hump without the rear slope'being contacted. Failure so to clear the hump and the resulting forward motion given to the detent only anticipates the first action of the roller on the next outward movement of the drawer, so the drawer may be 1 closed at any speed. The spring}? ;eng ages the cupped back-stop 33 (Fig. 2) and the prong 34 (Fig 2) carried by the drawer iseng'aged with a latching mechanism shown in Fig. 2. The prong 34 is released upon the pressing down of a-key 35 through a well known mechanism for the jpress-down key cash register described in er. release mechanism may be used.

While the invention herein described has been. shown as applied toone side of the drawer, it is .obvious thatit may be duplicated on theoppojsite si-de'if desired. l While the form of mechanism herein shown and, described is admirably adapted to fulfill the objects primarily. stated, it is to be understood that it is notintended to confine the in- Ventionto the one form or embodiment herein disclosed; for it is susceptibleofembodiment in various formsall coming within the scope. of

,theclaims which follow. 7 r

-- What is claimed is:,- v

1. In a cash ,register, the, combination of a drawer slidably mounted in, a frame; a drawer latch; ,means for] releasing the latch; a spring ,mounted on th'erear of thedrawerto forceit outward; a roller tappet capable of vertical move- 1 {ment mounted on the side of the drawer; a detentmovably mounted on the wall. of the drawer 'frame'adapted to be movedforward as the roller tappet passes over itwhen the drawer moves to open position and to be moved rearward as the roller tappet strikes or passes over it when the drawer moves to closed position; and a bypass 2.;In acashregister, the combination of a drawer slidably mounted in aframe; a drawer .latch; meansfor releasing the latch; means for forcibly ejecting the drawer from closed to open positionya roller tappet capable of Vertical move- ;ment mounted on'the side of the drawer; a dertent movably mounted on the wall of the drawer frame adapted to be moved forward as the roller tappet passes over it when the drawer moves, to open position and to be moved rearward as the roller tappet strikes or passes over it when ,the drawer moves to closed position; and a bypass-pawl rotatably mounted on the drawer frame and; designed to engage the roller tappet when the detent is in the forward position and to allow the tappet to pass in either direction when the detent is in the rearward. position.

"3. In a cash register. the combination of a drawer'slidably mounted in a frame; means for forcibly ejecting the drawer from closed to open position; a latch holding the drawer in closed position; means for releasing the; latch and rendering the ejecting means operative; a tappet pawl rotatably mounted on the drawer frame, designed to engage the roller tappet when the jdetent is. in;the ,forward position and to allow .the'tappet to pass in either direction whenthe -detent is in the rearward. position.

' forward movement of the drawer from arrested movably mounted on the drawer; a detent movably mounted on the drawer frame, moved in one direction by the tappet as the drawer opens from closed position and moved in the reverse direction by the tappet as the drawer closes; and a by-pas s pawl movably mounted on the drawer frame designed to be locked by movement of the detent on forward movement of the drawer causing the drawer to be arrested inflpartly opened position and to be unlocked by movement of the detent on rearward movement of the drawer.

4. In combination, a drawer, a frame in which the drawer is slidably mounted; a drawer stop actuated by forward movementof the drawer; a

movement but permitting rearwardmovement of the drawer; and drawer operated means for rei designed to be locked by the; movement of the leasing the bolt from thestop allowing further position and unrestricted rearward movement to closed position. I I i e 5. In combination, a drawer; drawer actuated means for stopping the forward movement of the drawer at a point short of full extension; and drawer actuated means for releasing said stopping means allowing the drawer to travel to full extendedposition or to return to closed position.

6. In acash register, in combination, a draw return to closed position, said return of the draw-,

er to closed-position restoring the stopping means to efiective condition.

7. In a cash register, the combination 'of a drawer slidably mounted ina frame; a means to eject the drawer to open position; a roller tappet capable of vertical movement mounted on the A, side of the drawer; a detent movably mounted on the wall of the door frame adapted to be moved forward as the roller tappet passes over it when the, drawer moves toropen position-and to be moved rearward when the roller tappet strikes or passes over it when the drawer moves to closed position; and a by-pass pawl rotatably mounted on the drawer frame designed to engage the roller tappet when the detent is in the forward posi- 8. In a cash register, the combination of a drawer slidably mountedin a frame; a tappet movably mounted on the; drawer; a detent mov-' ably mounted on the drawer frame, moved in one direction by the tappet as the drawer opens from closed position and moved in the reverse direction by thetappet as the drawer closes; a bypass pawl movably mounted on the drawer frame detent on forward movement of the drawer causing the drawer to be arrested inpartly opened position and .to be unlocked by movement of the detent on rearward movement of the drawer.

9. In a cash register having a main operating register; a cash drawer slidably mounted in the means operated at each operation of the cash" cash register; means for impelling said cash drawer toward complete outward position; and i a restraining'means normally keeping said cash drawer in its innermost position but operable 'on operation of'the main operating means to release the drawer fro mits innermost position and permit its movement outwardly underthe action of its impelling means, the combinationqof a second restraining means for said cash drawerfbeing,

position on its outward movement; and means f whereby said second restraining means is reni dered ineffective by a slight inward movement of the drawer thus topermit the movement of the drawer toward its complete outward position.

"A THUR o. KIBSHNER. 

